<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input
            placeholder="请输入内容"
            v-model="queryinfo.query"
            clearable
            @clear="getuserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getuserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- 用户列表区 -->
      <el-table :data="userlist" stripe style="width: 100%" border>
        <el-table-column type="index" label="序号"> </el-table-column>
        <el-table-column prop="username" label="姓名" width="180">
        </el-table-column>
        <el-table-column prop="email" label="邮箱" width="180">
        </el-table-column>
        <el-table-column prop="mobile" label="电话"> </el-table-column>
        <el-table-column prop="role_name" label="角色"> </el-table-column>
        <el-table-column prop="mg_state" label="状态">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChange(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <template v-slot="scope">
            <!-- 修改按钮 -->
            <el-tooltip
              class="item"
              effect="dark"
              content="修改"
              placement="top"
            >
              <el-button
                type="primary"
                icon="el-icon-edit"
                size="mini"
                @click="showEditDialog(scope.row.id)"
              ></el-button>
            </el-tooltip>
            <!-- 删除按钮 -->
            <el-tooltip
              class="item"
              effect="dark"
              content="删除"
              placement="top"
            >
              <el-button
                type="danger"
                icon="el-icon-delete"
                size="mini"
                @click="removeUserById(scope.row.id)"
              ></el-button>
            </el-tooltip>

            <!-- 分配角色按钮 -->
            <el-tooltip
              class="item"
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryinfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryinfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
    <!-- 添加用户对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="30%"
      @close="addDialogClosed"
    >
      <!-- 内容主体区 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户的对话框区域 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <!-- 内容主题区域 -->
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!--底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="edidUserInfo">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogClosed"
    >
      <p>当前用户：{{ userInfo.username }}</p>
      <p>当前的角色：{{ userInfo.role_name }}</p>
      <p>
        分配新角色:
        <el-select v-model="selectedRoleId" placeholder="请选择">
          <el-option
            v-for="item in roleList"
            :key="item.id"
            :label="item.roleName"
            :value="item.id"
          >
          </el-option>
        </el-select>
      </p>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data () {
    // 验证邮箱规则
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])/
      if (regEmail.test(value)) {
        // 验证通过
        return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }
    // 验证手机号规则
    var checkMobile = (rule, value, cb) => {
      // 验证手机号的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        // 验证通过
        return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }
    return {
      // 获取用户列表的参数
      queryinfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      userlist: [],
      total: 0,
      // 控制用户对话框的显示和隐藏
      addDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加表单的验证规则
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名的长度在3-10个字符之间',
            trigger: 'blur'
          }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '密码的长度在6-15个字符之间',
            trigger: 'blur'
          }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 控制修改用户对话框的显示和隐藏
      editDialogVisible: false,
      // 查询到的用户信息对象
      editForm: {
        username: '',
        email: '',
        mobile: ''
      },
      // 表单验证规则
      editFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名的长度在3-10个字符之间',
            trigger: 'blur'
          }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 控制分配权限对话框显示和影藏
      setRoleDialogVisible: false,
      // 需要被分配角色用户信息
      userInfo: {},
      // 所有数据的角色列表
      roleList: [],
      // 已选中的角色id值
      selectedRoleId: ''
    }
  },
  created () {
    this.getuserList()
  },
  methods: {
    async getuserList () {
      const { data: res } = await this.$http.get('/users', {
        params: this.queryinfo
      })
      // console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败')
      }
      this.userlist = res.data.users
      this.total = res.data.total
    },

    // 每页显示条数变化触发事件
    handleSizeChange (newsize) {
      // console.log(newsize)
      this.queryinfo.pagesize = newsize
      // 重新发起请求
      this.getuserList()
    },

    // 页码变化触发事件
    handleCurrentChange (newpage) {
      // console.log(newpage)
      this.queryinfo.pagenum = newpage
      // 重新发起请求
      this.getuserList()
    },

    async userStateChange (userinfo) {
      // console.log(userinfo)
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        // 退回原来的状态
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('用户状态修改失败')
      }
      // 更新状态成功
      this.$message.success('更新用户状态成功')
    },

    // 监听对话框关闭
    addDialogClosed () {
      // 重置表单数据
      this.$refs.addFormRef.resetFields()
    },

    // 点击按钮，添加新用户
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        // 用户表单预验证
        if (!valid) return
        // 可以发起添加用户的网络请求
        const { data: res } = await this.$http.post('/users', this.addForm)

        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败！')
        }
        this.$message.success('添加用户成功！')
        // 隐藏对话框
        this.addDialogVisible = false
        // 重新获取用户列表数据
        this.getuserList()
      })
    },

    // 展示编辑用户的对话框
    async showEditDialog (id) {
      this.editDialogVisible = true
      // console.log(id)
      const { data: res } = await this.$http.get('/users/' + id)
      // console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败')
      }
      this.editForm = res.data
    },

    // 监听对话框关闭事件
    editDialogClosed () {
      this.$refs.editFormRef.resetFields()
    },

    // 修改用户信息提交
    edidUserInfo (id) {
      // 表单预验证通过
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return

        // 发起修改用户信息的数据请求
        const { data: res } = await this.$http.put(
          '/users/' + this.editForm.id,
          { email: this.editForm.email, mobile: this.editForm.mobile }
        )
        if (res.meta.status !== 200) return this.$message.error('用户修改失败')
        // 关闭对话框
        this.editDialogVisible = false
        // 刷新数据列表
        this.getuserList()
        // 提示修改成功
        this.$message.success('用户修改成功')
        // console.log(res)
        // console.log(this.editForm)
      })
    },
    // 移除用户
    async removeUserById (id) {
      // console.log(id) //520 521
      // 点击确定为confirm，点击取消为cancel
      const conFirmresult = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)
      // console.log(conFirmresult)
      if (conFirmresult !== 'confirm') return this.$message.info('已取消删除')
      // 发起请求来删除用户信息
      const { data: res } = await this.$http.delete('/users/' + id)
      if (res.meta.status !== 200) return this.$message.error('删除用户失败')
      this.$message.success('删除成功')
      // 刷新列表
      this.getuserList()
    },
    // 展示分配角色的对话框
    async setRole (userInfo) {
      this.userInfo = userInfo
      // 获取角色列表
      const { data: res } = await this.$http.get('/roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败')
      }
      this.roleList = res.data
      // 打开对话框
      this.setRoleDialogVisible = true
    },
    // 分配角色权限
    async saveRoleInfo () {
      if (!this.selectedRoleId) return this.$message.error('请选择要分配的角色')
      // 发起请求
      const { data: res } = await this.$http.put(
        `/users/${this.userInfo.id}/role`,
        {
          rid: this.selectedRoleId
        }
      )
      if (res.meta.status !== 200) return this.$message.error('更新角色失败！')
      this.$message.success('更新角色成功！')
      // 刷新列表
      this.getuserList()
      this.setRoleDialogVisible = false
    },
    // 监听分配角色对话框事件
    setRoleDialogClosed () {
      this.selectedRoleId = ''
      this.userInfo = ''
    }
  }
}
</script>

<style></style>
